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Process for dyeing paper dyed by this process dyeing process for its preparation and formulation of solid and liquid dye for paper dyeing
Process for dyeing paper dyed by this process dyeing process for its preparation and formulation of solid and liquid dye for paper dyeing
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机译:通过该工艺染色方法对纸进行染色的方法,用于制备和配制用于纸染色的固体和液体染料
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摘要
4,4'-Bis(4-aminophenyl- and 4-aminonaphthyl)azo-benzanilide dyes (I) of formulae (IA) and (IB) are new. X, Y = H, halogen, 1-4C alkyl, 1-4C alkoxy, 1-4C alkylcarbonylamino, arylcarbonylamino, ureido or aryl-ureido; R1 = H, opt. substd. alkyl or aryl or R2; R2 = a cationic or protonisable gp.; or NR1R2 = an opt. substd. 5-, 6- or 7-membered ring, opt. contg. other heteroatom(s). Also claimed are a method for dyeing paper with (IA), (IB) or another mono- or dis-azo dye, which is a 4-phenylazo-aniline or 1-naphthylamine; paper dyed with one of these dyes; and solid or liquid dye formulations contg. the dye(s).
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